{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-26940", "tracking": { "current_release_date": "2026-03-23T17:27:16.259294Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-26940", "initial_release_date": "2026-03-20T15:20:59.363902Z", "revision_history": [ { "date": "2026-03-20T15:20:59.363902Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (3).| References created (1).| CWES updated (1)." }, { "date": "2026-03-20T15:21:03.410413Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-20T18:15:53.422419Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)." }, { "date": "2026-03-20T18:15:55.502527Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:16:35.280892Z", "number": "5", "summary": "Unknown change." }, { "date": "2026-03-20T18:32:54.838167Z", "number": "6", "summary": "Source connected.| CVE status created. (valid)| Products connected (3).| Products created (3).| References created (4)." }, { "date": "2026-03-20T18:32:58.561049Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-20T22:09:51.113225Z", "number": "8", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T22:10:01.925887Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-21T00:28:24.893928Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (11).| Product Identifiers created (5).| Product Remediations created (12).| Products created (1).| References created (3).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-21T00:28:29.286984Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-23T17:27:11.086034Z", "number": "12", "summary": "Products created (3).| Product Identifiers created (3)." }, { "date": "2026-03-23T17:27:13.640514Z", "number": "13", "summary": "NCSC Score updated." } ], "status": "interim", "version": "13" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:semver/8.0.0|<=8.19.12", "product": { "name": "vers:semver/8.0.0|<=8.19.12", "product_id": "CSAFPID-5872792" } }, { "category": "product_version_range", "name": "vers:semver/9.0.0|<=9.2.6", "product": { "name": "vers:semver/9.0.0|<=9.2.6", "product_id": "CSAFPID-5872791" } }, { "category": "product_version_range", "name": "vers:semver/9.3.0|<=9.3.1", "product": { "name": "vers:semver/9.3.0|<=9.3.1", "product_id": "CSAFPID-5872790" } }, { "category": "product_version_range", "name": "vers:unknown/>=8.0.0|<8.19.13", "product": { "name": "vers:unknown/>=8.0.0|<8.19.13", "product_id": "CSAFPID-5893823", "product_identification_helper": { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=9.0.0|<9.2.7", "product": { "name": "vers:unknown/>=9.0.0|<9.2.7", "product_id": "CSAFPID-5893824", "product_identification_helper": { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=9.3.0|<9.3.2", "product": { "name": "vers:unknown/>=9.3.0|<9.3.2", "product_id": "CSAFPID-5893825", "product_identification_helper": { "cpe": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Kibana" } ], "category": "vendor", "name": "Elastic" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<8.19.12", "product": { "name": "vers:unknown/<8.19.12", "product_id": "CSAFPID-5734970" } }, { "category": "product_version_range", "name": "vers:unknown/<8.19.13", "product": { "name": "vers:unknown/<8.19.13", "product_id": "CSAFPID-5875106" } }, { "category": "product_version_range", "name": "vers:unknown/<9.2.6", "product": { "name": "vers:unknown/<9.2.6", "product_id": "CSAFPID-5734971" } }, { "category": "product_version_range", "name": "vers:unknown/<9.2.7", "product": { "name": "vers:unknown/<9.2.7", "product_id": "CSAFPID-5875104" } }, { "category": "product_version_range", "name": "vers:unknown/<9.3.1", "product": { "name": "vers:unknown/<9.3.1", "product_id": "CSAFPID-5734968" } }, { "category": "product_version_range", "name": "vers:unknown/<9.3.2", "product": { "name": "vers:unknown/<9.3.2", "product_id": "CSAFPID-5875105" } } ], "category": "product_name", "name": "Kibana" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/5", "product": { "name": "vers:rpm/5", "product_id": "CSAFPID-1459353", "product_identification_helper": { "cpe": "cpe:/a:redhat:logging:5" } } } ], "category": "product_name", "name": "Logging Subsystem for Red Hat OpenShift" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/8", "product": { "name": "vers:rpm/8", "product_id": "CSAFPID-1439302", "product_identification_helper": { "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8" } } } ], "category": "product_name", "name": "Red Hat JBoss Enterprise Application Platform 8" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1439304", "product_identification_helper": { "cpe": "cpe:/a:redhat:jbosseapxp" } } } ], "category": "product_name", "name": "Red Hat JBoss Enterprise Application Platform Expansion Pack" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/3", "product": { "name": "vers:rpm/3", "product_id": "CSAFPID-1496375", "product_identification_helper": { "cpe": "cpe:/a:redhat:openshift_distributed_tracing:3" } } } ], "category": "product_name", "name": "Red Hat OpenShift distributed tracing 3" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/16.2", "product": { "name": "vers:rpm/16.2", "product_id": "CSAFPID-1441187", "product_identification_helper": { "cpe": "cpe:/a:redhat:openstack:16.2" } } } ], "category": "product_name", "name": "Red Hat OpenStack Platform 16.2" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1496167" } } ], "category": "product_name", "name": "cluster-logging-rhel9-operator" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-2914697" } } ], "category": "product_name", "name": "elasticsearch-rhel9-operator" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-1459355" } } ], "category": "product_name", "name": "kibana6-rhel8" } ], "category": "product_family", "name": "Logging Subsystem for Red Hat OpenShift" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5033639" } } ], "category": "product_name", "name": "kibana" } ], "category": "product_family", "name": "Red Hat JBoss Enterprise Application Platform 8" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5438695" } } ], "category": "product_name", "name": "kibana" } ], "category": "product_family", "name": "Red Hat JBoss Enterprise Application Platform Expansion Pack" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5033640" } } ], "category": "product_name", "name": "puppet-kibana3" } ], "category": "product_family", "name": "Red Hat OpenStack Platform 16.2" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-5878908" } } ], "category": "product_name", "name": "tempo-jaeger-query-rhel9" } ], "category": "product_family", "name": "Red Hat OpenShift distributed tracing 3" } ], "category": "vendor", "name": "Red Hat" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-26940", "cwe": { "id": "CWE-1284", "name": "Improper Validation of Specified Quantity in Input" }, "notes": [ { "category": "description", "text": "Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/26xxx/CVE-2026-26940.json" }, { "category": "description", "text": "Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-26940" }, { "category": "description", "text": "A flaw was found in the Timelion visualization plugin in Kibana. An authenticated user can exploit this by sending a specially crafted Timelion expression. This expression overwrites internal series data properties with an excessively large quantity value. This improper validation of input quantity can lead to a Denial of Service (DoS) by causing excessive memory allocation, making the service unavailable.\nThis is a MODERATE impact denial of service flaw in the Kibana Timelion visualization plugin. An authenticated user can exploit this by sending a specially crafted Timelion expression, leading to excessive memory allocation and service unavailability. This vulnerability requires an authenticated user to trigger the flaw.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26940.json" }, { "category": "other", "text": "0.00044", "title": "EPSS" }, { "category": "other", "text": "4.3", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to CWE-1284 (Improper Validation of Specified Quantity in Input)", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-5872790", "CSAFPID-5872791", "CSAFPID-5872792", "CSAFPID-5734968", "CSAFPID-5734970", "CSAFPID-5734971", "CSAFPID-5875104", "CSAFPID-5875105", "CSAFPID-5875106", "CSAFPID-1439302", "CSAFPID-1439304", "CSAFPID-1441187", "CSAFPID-1459353", "CSAFPID-1459355", "CSAFPID-1496167", "CSAFPID-1496375", "CSAFPID-2914697", "CSAFPID-5033639", "CSAFPID-5033640", "CSAFPID-5438695", "CSAFPID-5878908", "CSAFPID-5893823", "CSAFPID-5893824", "CSAFPID-5893825" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/26xxx/CVE-2026-26940.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-26940" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0805.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26940.json" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; nvd; redhat", "url": "https://discuss.elastic.co/t/kibana-8-19-13-9-2-7-9-3-2-security-update-esa-2026-20/385535" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0805.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0805" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-19/385530" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-26940" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26940" } ], "remediations": [ { "category": "mitigation", "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.", "product_ids": [ "CSAFPID-1439302", "CSAFPID-1439304", "CSAFPID-1441187", "CSAFPID-1459353", "CSAFPID-1459355", "CSAFPID-1496167", "CSAFPID-1496375", "CSAFPID-2914697", "CSAFPID-5033639", "CSAFPID-5033640", "CSAFPID-5438695", "CSAFPID-5878908" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1439302", "CSAFPID-1439304", "CSAFPID-1441187", "CSAFPID-1459353", "CSAFPID-1459355", "CSAFPID-1496167", "CSAFPID-1496375", "CSAFPID-2914697", "CSAFPID-5033639", "CSAFPID-5033640", "CSAFPID-5438695", "CSAFPID-5734968", "CSAFPID-5734970", "CSAFPID-5734971", "CSAFPID-5872790", "CSAFPID-5872791", "CSAFPID-5872792", "CSAFPID-5875104", "CSAFPID-5875105", "CSAFPID-5875106", "CSAFPID-5878908", "CSAFPID-5893823", "CSAFPID-5893824", "CSAFPID-5893825" ] } ], "title": "CVE-2026-26940" } ] }